GB/T 12459  偏心异径管 DN 350×300-3RE0B25(b)

DN 300×350-3 RE0B25(b)

WN 25(B)-16 RF

PL 400-10 RF

WN150-300 RF A6 RF=3RF

WN300-150 RFFch80S/mpams

WN100-2500RJ D=275 K=220 L=30 C=55 H=130 N=156 A=101.6 S=12.5 H1=14 R1=8 d=166 P=135 F=12 E=8

WN 25(B)-16 RF Sch60

SO25B-25FM b=3l‚

SO50(A)-40M